WO2001094062A1 - Dispositif de reglage de position - Google Patents

Dispositif de reglage de position Download PDF

Info

Publication number
WO2001094062A1
WO2001094062A1 PCT/US2001/015694 US0115694W WO0194062A1 WO 2001094062 A1 WO2001094062 A1 WO 2001094062A1 US 0115694 W US0115694 W US 0115694W WO 0194062 A1 WO0194062 A1 WO 0194062A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
clamp
measuring unit
clamps
additional
Prior art date
Application number
PCT/US2001/015694
Other languages
English (en)
Inventor
John A. Kovach
Joseph G. Bolden
Original Assignee
Kennametal Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kennametal Inc. filed Critical Kennametal Inc.
Priority to BR0111759-9A priority Critical patent/BR0111759A/pt
Priority to CA002410063A priority patent/CA2410063A1/fr
Priority to EP01937408A priority patent/EP1292415A4/fr
Publication of WO2001094062A1 publication Critical patent/WO2001094062A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
    • B23Q17/2216—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work for adjusting the tool into its holder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
    • B23Q17/2216—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work for adjusting the tool into its holder
    • B23Q17/2225—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work for adjusting the tool into its holder with the toolholder as reference-element
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
    • G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
    • G01B5/061—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness height gauges

Definitions

  • This invention generally relates to adjusting devices for machine tools and is specifically concerned with a device for presetting the position of a plurality of machine tools relative to one another.
  • machining operations require a dual spindle application.
  • the spindles are generally operated simultaneously by a program to perform the same movement to machine identical parts.
  • wing spars of aircraft are commonly machined from raw material, such as aluminum blocks.
  • the aluminum blocks are generally supported by a machine that permits horizontal operation of its spindles in an area about 100 feet long and 30 feet high. Acceptable tolerances in such an operating environment are within ⁇ 1.00 inch.
  • dual spindle machine tools must be set up the same. To accomplish this, such tools are commonly supported by thermal gripping adapters.
  • each adapter has a bore therein for receiving a respective tool.
  • Another end of each adapter is provided with a shank that is adapted to engage a respective spindle.
  • the diameter of each bore is slightly smaller than that of the machine tools.
  • a "shrinker" includes a coil that may be electrically charged to heat the adapter. This causes the bore to expand. In this expanded condition, the bore may receive a respective tool. The tool is inserted into the bore until a collar or clamp engages the adapter. At this juncture, the adapter is permitted to cool. As it cools, the bore contracts to grip the tool, creating an interference fit between the tool and the adapter.
  • the tools are precisely pre-set in the clamps and then precisely gripped by the adapter.
  • the tools must be pre-set within the clamps within ⁇ 0.0005 inch of each other and then gripped by the adapters within ⁇ 0.0005 inch of each other. This produces an acceptable tolerance of ⁇ 0.001 inch.
  • a clamp is releasably supported relative to a supporting surface by a "pot".
  • a measuring unit is aligned with the clamp in a spaced relation relative to the clamp.
  • a tool may be placed in the clamp and the measuring unit may engage the tool.
  • a fine adjustment screw is adapted to be adjusted to vary the position of the tool relative to the clamp.
  • the clamp may be tightened to hold the tool in a fixed position. Once the clamp is tightened, the tool with the clamp tightened thereto may be removed from the pot and inserted into the thermal gripping adapter. Additional tools may be positioned in additional clamps with the same device by following the same sequence of steps.
  • the invention is directed to a device for adjusting the position of a machine tool.
  • the device comprises a surface plate defining a flat surface.
  • a plurality of clamps are supported relative to the flat surface.
  • Each clamp is adapted to support a tool.
  • An adjustment member is adapted to adjust each tool relative to a respective one of the clamps.
  • the method may provide a clamp and a measuring device spaced apart from the clamp.
  • a tool may be inserted into the clamp.
  • the tool may be engaged with the measuring device.
  • the position of the tool may be adjusted to achieve a desired measurement by the measuring device.
  • the clamp may be tightened upon the tool to hold the tool in a fixed position.
  • At least one additional clamp may be provided and the clamps may be co-planar relative to one another.
  • An additional tool may be inserted in the additional clamp.
  • the measuring device may be aligned with the additional tool after the first clamp is tightened to hold the first tool in a fixed position. With the measuring device in a fixed position, the additional tool is engaged with the measuring device.
  • the position of the additional tool is adjusted to achieve a measurement by the measuring device identical to that of the first tool.
  • the additional clamp is tightened upon the additional tool to hold the additional tool in a fixed position.
  • the adjustment device is easily and highly controllable for fine position adjustments.
  • a common placement of clamps reduces the risk of error occurring in positioning tools and assists in holding the tools in a fixed position that is common to one another.
  • the method of the invention advantageously provides an easy technique for positioning tools and holding the tools in a fixed position relative to one another.
  • FIGURE 1 is a perspective view of a position- adjusting device of the invention
  • FIGURE 2 is a side elevational view of the device illustrated in Figure 1 with a machine tool shown in phantom line;
  • FIGURE 3 is an enlarged, top plan view of the device illustrated in Figure 1;
  • FIGURE 4 is an enlarged, cross-sectional view of a measuring unit of the device taken along the line 4-4 in Figure 2;
  • FIGURE 5 is an enlarged, cross-sectional view of a pot and an adjustment member of the device taken along the line 5-5 in Figure 3.
  • the position- adjusting device 10 of the invention is adapted for use in presetting the position of machine tools T.
  • a plurality of machine tools T are adapted to be supported by a plurality of clamps 12.
  • the position of each tool T relative to a respective clamp 12 is measured by a gauging system 14.
  • the gauging system 14 permits the position of each tool T to be uniformly preset.
  • the position-adjusting device 10 includes a base 16.
  • the base 16 includes a flat surface defined by a surface plate 18.
  • the surface plate 18 is formed from granite.
  • the surface plate 18 is 20.00 inches long and 20.00 inches wide.
  • the thickness of the surface plate 18 is four inches.
  • the surface plate 18 is milled to define a precision flat surface.
  • the surface plate 18 may be supported by legs 20.
  • the legs 20 may be secured to the bottom of the surface plate 18 by fasteners 22.
  • Each clamp 12 is adapted to be supported relative to the surface plate 18.
  • each clamp 12 is adapted to be supported by a pot 24 (shown in Figure 5) .
  • Each clamp 12 may be secured to a pot 24 by a pair of hook clamp assemblies 28.
  • Each hook clamp assembly 28 is preferably a model 41905 hook clamp assembly manufactured by Jergens of Cleveland, OH, which is a 3/8-16 X 3 inch hook clamp.
  • the hook clamp assemblies 28 include a hook through which a fastener passes. A spring beneath the hook urges the hook upwardly.
  • the fastener may be tightened downwardly relative to the surface plate 18 against the force of the spring to force the hook downwardly into contact with the clamp 12.
  • the fastener may be loosened.
  • the spring urges the hook upwardly away from the clamp 12. In this position, the hook may be turned so that it does not interfere with the removal of the clamp 12 from the pot 24.
  • each pot 24 may be secured to a respective sleeve.
  • Each sleeve may be pressed into a bore in the surface plate 18.
  • Each sleeve may have an integral flange that is adapted to be recessed in the surface plate 18 so that it is flush with the flat surface.
  • Each flange may be provided with a plurality of threaded holes that are adapted to align with holes in a respective pot 24. Fasteners may pass through the holes in the pots 24 and engage the threaded holes in the flanges to secure the pots 24 to the flanges.
  • each pot 24 is co-planar with each other pot 24. This co-planar relationship permits each tool T to be uniformly positioned in its respective clamp 12 relative to each other tool T.
  • each tool T may be adjusted independently by a respective adjustment member 94 (shown in Figure 5) .
  • Each adjustment member 94 is preferably disposed in a hole in the surface plate 18 beneath a respective pot 24.
  • Each adjustment member 94 preferably includes an adjusting screw housing 96 inserted into a respective hole in the surface plate 18.
  • Each adjusting screw housing 96 has a flange that abuts the bottom of the surface plate 18 and is fastened to the surface plate 18 by fasteners 98.
  • a fine adjusting screw 100 is threaded into each adjusting screw housing 96. An end of the fine adjusting screw 100 is adapted to engage a tool T in a pot 24. The tool T is displaced by turning the fine adjusting screw 100.
  • the gauging system 14 includes a measuring unit 32 and a display unit 36.
  • the measuring unit 32 is a DG2058P manufactured by Sony.
  • the measuring unit 32 may be provided with an optional ceramic tip 34.
  • the display unit 36 is a LT 20-101C manufactured by Sony.
  • the measuring unit 32 is connected to the display unit 36.
  • the ceramic tip 34 is adapted to engage each tool T independently to sense the position of each tool T. The position of the ceramic tip 34 is measured by the measuring unit 32.
  • the display unit 36 provides a visual indication representing the position of the ceramic tip 34. Varying the position of the tool T varies the position of the ceramic tip 34. Hence, the display provides a visual indication of the position of each tool T independently as the position of each tool T is adjusted. In the preferred embodiment, the display unit
  • the measuring unit housing 46 is contained in a measuring unit housing 46.
  • the measuring unit housing 46 is supported in spaced relation relative to the base 16 by a support.
  • the support includes a panel-mounting shaft 54 which supports a panel mounting plate 56.
  • the panel mounting shaft 54 is secured to the base 16, such as by the fastener 58 shown in Figure 2.
  • the measuring unit housing 46 is secured to the panel mounting plate 56.
  • the panel mounting plate 56 is preferably adapted to pivot relative to the panel-mounting shaft 54 to permit the angle of the display unit 36 to be adjusted.
  • the measuring unit 32 is supported by a support.
  • the support is defined by a clamp 62, which is adapted to hold the measuring unit 32.
  • the clamp 62 is supported by a pivot bar defined by a post 68.
  • the clamp 62 includes opposing clamp ends. A first clamp end is adapted to support the measuring unit 32. A second clamp end is adapted to be secured to the post 68.
  • Each clamp end includes a stud type knob 64, 66.
  • a first one of the knobs 64 can be loosened to release the measuring unit 32 from the first end of the clamp 62.
  • a second one of the knobs 66 can be loosened to permit the second end of the clamp 62 to be loosened relative to the post 68.
  • the clamp 62 Upon loosening the second end of the clamp 62, the clamp 62 can be moved to vary the elevation of the clamp 62 to accommodate different size tools.
  • the post 68 is adapted to pivot to permit the clamp 62 to move within a plane P (shown in Figure 2) parallel to the flat surface defined by the surface plate 18. This permits the measuring unit 32 to move along an arc A (shown in Figure 3) within a plane parallel to the flat surface.
  • the pots 24 are arranged along an arc having a radius equal to the arc A of movement of the measuring unit 32 and a focal point coaxial to that of the arc A of movement of the measuring unit 32. Hence, the measuring unit 32 can be aligned with each tool T supported by each clamp 12.
  • the post 68 is pivotally supported by the surface plate 18 by a tapered roller bearing assembly 70 (shown in Figure 4), such as cone bearing # 15125 and cup bearing # 15245 manufactured by Timken of Keene, NH.
  • the tapered roller bearing assembly 70 includes tapered roller bearings supported by a reduced diameter portion of the post 68. The roller bearings are held in spaced relation to one another by a bearing spacer 76.
  • the post 68 and the tapered roller bearing assembly 70 are received in a hole provided in the surface plate 18.
  • Bearing retainers 72, 74 retain the tapered roller bearing assembly 70 in the hole.
  • One retainer 72 is held in place be fasteners 78.
  • a locknut 80 is threaded onto a threaded end of the post 68 to fix the post 68 in an axial position relative to the tapered roller bearing assembly 70.
  • a lock washer 82 is provided to reduce the risk of the locknut 80 loosening. The lock washer 82 abuts the other bearing retainer 74.
  • an end of the post 68 opposite the threaded end is pivotally secured to a support shaft 84.
  • the support shaft 84 includes a contact bar 88 and a stationary shaft 86.
  • a sleeve bearing 90 is interposed between an end of the contact bar 88 and the end of the post 68 opposite the threaded end.
  • the sleeve bearing 90 is preferably a bronze sleeve bearing, such as the SS3248-32 manufactured by Symmco of Sykesville, PA.
  • An opposite end of the contact bar 88 is secured to an end of the stationary shaft 86, such as by press-fitting the end of the stationary shaft 86 into the contact bar 88.
  • the post 68, the stationary shaft 86, and the contact bar 88 form a pi configuration.
  • the post 68 and stationary shaft 86 are arranged parallel to one another and the contact bar 88 is arranged perpendicular relative to the post 68 and stationary shaft 86.
  • the position-adjusting device 10 permits the position of a plurality of tools to be adjusted to a common position relative to one another.
  • the two pots 24 shown may each accommodate a tool by placing the tools in the clamps 12.
  • the measuring unit 32 may be adjusted to engage the ceramic tip 34 with an end of the tool T. This may be accomplished by first aligning the ceramic tip 34 with the tool T.
  • the knob 66 may be loosened to slide the clamp 62 axially relative to the post 68 until the ceramic tip 34 engages an end of the tool T.
  • the position of the tool T may be adjusted by turning the fine adjusting screw 100 beneath a corresponding pot 24.
  • the variation in the position of the tool T may be monitored on the display unit 36 as the position of the tool T is adjusted. Once the tool T has been adjusted to a desired position, the tool T may be secured in its respective clamp 12. At this juncture, the measuring unit clamp 62 may be displaced within a plane parallel to the flat surface of the surface plate 18 by pivoting the post 68. As this occurs, the measuring unit 32 moves along an arc A. The measuring unit clamp 62 is displaced until the measuring unit 32 aligns with a second tool (not shown) . With the ceramic tip 34 of the measuring unit 32 engaging the second tool, the position of the second tool may be adjusted to the exact position of the first tool T.
  • a method for adjusting the position of a tool comprises the steps of providing a clamp and a measuring device spaced apart from the clamp. A tool is inserted into the clamp. The tool is engaged with the measuring device. The position of the tool is adjusted to achieve a desired measurement by the measuring device. The clamp is then tightened upon the tool to hold the tool in a fixed position.
  • a method according to the invention may provide at least one additional clamp.
  • the clamps are supported in a co-planar relationship with one another.
  • An additional tool is inserted in the additional clamp.
  • the measuring device is aligned with the additional tool after the first clamp is tightened to hold the first tool in a fixed position.
  • the measuring device is engaged with the additional tool.
  • the position of the additional tool is adjusted to achieve a measurement by the measuring device identical to the measurement achieved with respect to the first tool.
  • the additional clamp is then tightened upon the additional tool to hold the additional tool in a fixed position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Machine Tool Sensing Apparatuses (AREA)
  • Machine Tool Units (AREA)

Abstract

La présente invention concerne un dispositif (10) permettant d'ajuster la position d'un outil (T) de machine. Ce dispositif (10) comprend une plaque de surface définissant une surface plate. Une pluralité de pinces (12) sont supportées par cette surface plate. Chaque pince (12) est adaptée pour supporter un outil (T). un élément de réglage est adapté pour régler chaque outil (T) par rapport à une pince respective (12). Ce procédé peut comprendre une pince (12) et un dispositif de mesure (32) espacé de cette pince. On peut introduire un outil (T) dans la pince (12). Ensuite on peut mettre cet outil en contact avec le dispositif (32) de mesure. A ce moment, on peur régler la position de l'outil (T) de façon à effectuer la mesure souhaitée au moyen de ce dispositif (32) de mesure. Enfin. On peut serrer la pince (12) sur l'outil (T) de façon à tenir cet outil dans une position fixe. Au moins une pince (12) additionnelle peut être prévue et ces pinces peuvent être situées l'une par rapport à l'autre dans le même plan.
PCT/US2001/015694 2000-06-08 2001-05-16 Dispositif de reglage de position WO2001094062A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BR0111759-9A BR0111759A (pt) 2000-06-08 2001-05-16 Dispositivo para ajustar posição de uma ferramenta de máquina e método de execução
CA002410063A CA2410063A1 (fr) 2000-06-08 2001-05-16 Dispositif de reglage de position
EP01937408A EP1292415A4 (fr) 2000-06-08 2001-05-16 Dispositif de reglage de position

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/590,706 US6625894B1 (en) 2000-06-08 2000-06-08 Position-adjusting device
US09/590,706 2000-06-08

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US08/349,018 Continuation-In-Part US5673701A (en) 1993-06-17 1994-12-02 Optical techniques for examination of biological tissue

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US09/170,833 Continuation US6058324A (en) 1993-06-17 1998-10-13 Examination and imaging of biological tissue

Publications (1)

Publication Number Publication Date
WO2001094062A1 true WO2001094062A1 (fr) 2001-12-13

Family

ID=24363343

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/015694 WO2001094062A1 (fr) 2000-06-08 2001-05-16 Dispositif de reglage de position

Country Status (5)

Country Link
US (1) US6625894B1 (fr)
EP (1) EP1292415A4 (fr)
BR (1) BR0111759A (fr)
CA (1) CA2410063A1 (fr)
WO (1) WO2001094062A1 (fr)

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Publication number Priority date Publication date Assignee Title
JPH11325869A (ja) * 1998-05-11 1999-11-26 Mitsutoyo Corp ワーク形状測定方法、装置及び座標測定機
US7029209B2 (en) * 2000-12-18 2006-04-18 Cardemon, Inc. Slidable boring tool with fine adjustment
US7500419B2 (en) * 2003-08-29 2009-03-10 Helmut Schuster Center drive machine and clamping device therefore
DE102005008878B4 (de) * 2005-02-24 2009-04-16 Lpkf Laser & Electronics Ag Verfahren zur Bestimmung der Position eines Fräswerkzeuges und ein zur Durchführung des Verfahrens bestimmter Bearbeitungskopf
JP6168946B2 (ja) * 2013-09-24 2017-07-26 株式会社ミツトヨ 送り機構、形状測定機
CN104827347B (zh) * 2015-05-20 2017-06-16 广州汽车集团乘用车有限公司 一种变径套及对刀仪
FR3077347B1 (fr) * 2018-01-30 2020-02-28 Airbus Operations Dispositif et procede de controle d'assemblages a vis et ecrous dans un aeronef
JP7094821B2 (ja) * 2018-08-06 2022-07-04 株式会社ミツトヨ 形状測定装置

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US4251922A (en) * 1979-05-31 1981-02-24 Premier Engineering Co., Inc. Universal preset tooling gage

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JPH0758181B2 (ja) * 1988-11-29 1995-06-21 日産自動車株式会社 三次元測定装置
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DE4233010A1 (de) * 1992-10-01 1994-04-07 Dienes Werke Wechselwagen für Traversen an Schneidmaschinen
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US4228595A (en) * 1979-04-18 1980-10-21 Harold Steinbach Tool setting gage
US4251922A (en) * 1979-05-31 1981-02-24 Premier Engineering Co., Inc. Universal preset tooling gage

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Title
See also references of EP1292415A4 *

Also Published As

Publication number Publication date
EP1292415A1 (fr) 2003-03-19
CA2410063A1 (fr) 2001-12-13
BR0111759A (pt) 2003-06-24
US6625894B1 (en) 2003-09-30
EP1292415A4 (fr) 2004-03-17

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